Randy R. Runquist
27Patents
10h-index
27Co-inventors
75Inventor score
Filing activity: Apr 26, 1995 → Mar 14, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6454025B1 | Apparatus for directional boring under mixed conditions | Fixed Constructions | 102 | Expired |
| US5778991A | Directional boring | Fixed Constructions | 53 | Expired |
| US6659202B2 | Steerable fluid hammer | Fixed Constructions | 38 | Expired |
| US7694753B2 | Dual rod drill pipe with improved flow path method and apparatus | Fixed Constructions | 23 | Active |
| US6668946B2 | Backreamer | Fixed Constructions | 22 | Expired |
| US8220564B2 | Devices and methods for dynamic boring procedure reconfiguration | Fixed Constructions | 22 | Active |
| US6491115B2 | Directional drilling machine and method of directional drilling | Fixed Constructions | 21 | Expired |
| US5687807A | Cutter head for trenchless boring machine | Fixed Constructions | 20 | Expired |
| US6357537B1 | Directional drilling machine and method of directional drilling | Fixed Constructions | 20 | Expired |
| US6533052B2 | Drill bit for impact-assisted directional boring | Fixed Constructions | 12 | Expired |
| US6588516B2 | Method and apparatus for directional boring under mixed conditions | Fixed Constructions | 8 | Expired |
| US6439319B1 | Method and apparatus for directional boring under mixed conditions | Fixed Constructions | 7 | Expired |
| USRE44427E1 | Apparatus for directional boring under mixed conditions | General | 7 | Active |
| USD719988S1 | Rear connection inter-face for a reducing element of a material reducing machine | General | 6 | Active |
| US6390207B2 | Method and apparatus for directional boring under mixed conditions | Fixed Constructions | 6 | Expired |
| US8991490B2 | Tapered thread configuration with improved durability | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US10124509B2 | Cutting tooth system | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US8235142B2 | Underground boring machine and method for controlling underground boring | Fixed Constructions | 3 | Active |
| US9611698B2 | Hole opener bearing arrangement | Emerging Cross-Sectional Technologies | 3 | Active |
| US7721821B2 | Underground boring machine and method for controlling underground boring | Fixed Constructions | 2 | Active |
| US8939237B2 | Underground drilling apparatus | Fixed Constructions | 2 | Active |
| US6516899B2 | Method and apparatus for directional boring under mixed conditions | Fixed Constructions | 2 | Expired |
| US9732560B2 | Drilling tool and apparatus | Fixed Constructions | 2 | Active |
| US9605491B2 | Tapered thread configuration with improved durability | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9016366B2 | Tapered thread configuration with improved durability | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.